Comparación de adhesión y tipo de falla en una aleación no noble

Diana Alejandra López Saavedra; Luis Felipe Márquez García; María Clara Saavedra Gómez

doi:10.16925/od.v9i16.8

Comparison of Shear Bond and Failure Type on a Non-noble Metal Alloy Cast

Research Articles

https://doi.org/10.16925/od.v9i16.8

Diana Alejandra López Saavedra Ver Biografía

Universidad Militar Nueva Granada

Luis Felipe Márquez García Ver Biografía

Universidad Militar Nueva Granada

María Clara Saavedra Gómez Ver Biografía

Universidad Militar Nueva Granada

Introduction: This in vitro study compared the shear bond strength and failure type produced by three surface treatments on a non-noble metal alloy cast.

Materials and methods: Ninety six cylinders cast in a non-noble metal alloy (Argeloy® N.P. Star, Argen®), grouped in pairs for 48 double specimens in total received three different surface treatments: no sandblasting control (group 1); sandblasting with 110-μm Al2O3 (group 2) and sandblasting with 50-μm Al2O3, (group 3). Each group was divided in two subgroups to be bound with two different resin based luting cements and metal conditioners (Monobond® Plus + Multilink® N, Ivoclar Vivadent®-ml; and Metal Primer ii + gcem, gc Corporation (gc). All specimens were aged in distilled water at a constant 37°C for 8 weeks and tested for shear bond strength. Failure type was examined by stereomicroscopy.

Results: The mean shear bond strengths (in MPa) after aging were 11.02 (control gc), 9.52 (control ml), 10.08 (50 gc), 11.72 (50 ml), 7.85 (110 gc), 8.12 (110 ml). There was a statistically significant difference among groups. The lower shear bond strength was for the group that was sandblasted with 110-μm Al2O3 for both cements.

Conclusion: In the metal to metal bonding protocol sandblasting is not required.

Keywords: adhesion, shear bond strength, base metal, sandblasting, failure type

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Comparison of Shear Bond and Failure Type on a Non-noble Metal Alloy Cast. (2013). Revista Nacional De Odontología, 9(16), 35-41. https://doi.org/10.16925/od.v9i16.8

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Vol. 9 No. 16 (2013)

Published

2013-06-30

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